<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Youtube</title>
</head>
<body>

<iframe width="420" height="345" src="https://www.youtube.com/embed/ih1l6wb7LhU?autoplay=1&mute=1"></iframe>

<iframe width="420" height="345" src="https://www.youtube.com/embed/ih1l6wb7LhU?autoplay=1&mute=0"></iframe>

</body>
</html>